Upper Letts Lake Weather Forecast

    • 56
    • 69

    Sunny

    • 56
    • 72

    Sunny

    • 52
    • 69

    Sunny

    • 40
    • 64

    Mostly Sunny

    • 40
    • 50

    Chance Rain

    • 41
    • 48

    Chance Rain

    • 41
    • 51

    Slight Chance Rain

Today 15 Oct Glenn and Colusa County Coast Range Above 3000 ft

Mostly clear. Lows 37 to 47. Highs 49 to 59.

Tonight 15 Oct Glenn and Colusa County Coast Range Above 3000 ft

Clear. Lows 52 to 62. North Winds around 10 Mph with Gusts to around 30 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Upper Letts Lake Temperature Statistics

October Temperature

Ukiah Municipal Airport (28.6 miles)

  • Lowest 13 October, 2026

    39 °F

  • Average October

    70.6 °F

  • Highest 5 October, 2026

    102.7 °F

Climate (2021–2026)

Ukiah Municipal Airport (28.6 miles)

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  • Average Low 2021–2026

    47.1 °F

  • Average 2021–2026

    61 °F

  • Average High 2021–2026

    76.1 °F
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